Annealing box



July 24,1928.- 1,678,452

w. E. TRouTM/utl ANNBALING BOX Filed Aug.'13, 1926 INVENTOR Patented July 24, 1928.

UNiTED YAsriifri-:s y

0F PENNSYLVANIA.

ANNEALING Box.

Application led August 13, 1926. Serial No. 129,001.

'Ihis invention relates to annealing boxes. VIn the manufactureand use of annealing boxes, l considerable diiiicuilty is encounterd in preventing the annealing boxes from distorting or cracking. Boxes of this character, particularly when formed of an integral casting, are extremely difficult to` cast in such a manner that the casting vwill cool.l in. the proper manner Without breaking. Annealing boxes are subjected to severeand rapid changes in temperatures, and subjected to unequal temperatures, andy for this reason they are extremely liable to become distorted andv to crack when the-y are being used.

rlflie present invention proposes to provide i anannealing ,boxl of an improved construc-v tion wherein the Walls thereof are of a novel shape, which insures proper lsupport and bracing for the Walls. in' all directions, vand which is of such shape as to reSistdistOrtiOn and cracking under extreme temperature conditions. Y i

My invention may be readily understood by reference to the accompanying drawings which illustrate a preferred embodiment of my invention and in Which- III Fig-irre 1 is a side elevation of anannealing box, part of the box being broken ,away to show the interior thereof;

Figure 2 isa top plan vieWof the boxv shown in Figure 1, part of the structure in this View also being broken away to show the interior of the box; and u Figure 3 is a section on the staggered line III of Figure 2. Y

The annealing box, which is preferably formed of cast metal and which is preferably an integral structure, has side Walls 2, end Walls 3 and a top 4. The side Walls are preferably formed in such a Way as tofprovide a series of reversely arranged channelsV Which extend from the base of the box vertically up the sid-es, the channels continuing across the top of the box. The inwardly turned chan-v nel portions are designated 5, and the out- Wardly turned channel portions are designated 6.' 'Ihe channels preferably have substantially perpendicular sidel Walls 7. In each of the interior channels 5 in the side Walls 2 of the box are central vertical webs 8. These Webs have lateral Webs 9 thereon extending` transversely thereof which join to the sides of the channel so that .the channels arecOnnected together .at intervals along their height by the transverselwebs, While the vertical Webs 8 impartrigidity to the channel formation. The Vvertical webs 8 merge WILLIAME. TROUTMAN, or PITTSBURGH.. PENNSYLVANIA, AssIGNoR To DUQUESINE., STEEL EOUNDRY COMPANY, oF PITTSBURGH, PENNSYLVANIA, A coisiromiTIoN" at their tops with cross .webs/1()y that extend down into'the.- inside of*y the box below thev general level of the top thereof.

In each of the externalchannels *6in the Y side Walls of the box is a similarly'arranded central vertical weby 11. This `web 11 as.

staggered with respect to the 'Webs-9',`so' that they are not in horizontal alignment. The verti cal VWebs llpreferably Vternainate belowl the arched top ofV the box; v Inside the box in line with the verticalW-e'bs 11 aree-ross` i Webs 13 which projectdown belovv'` thegeneral klevel of the top of the box approximately the same distance that the cross webs ldproject down.

In the inside channels inthe top of the" box are integral Webs 14; similar to the Websf), butserve'to bracethe vinterior of the top ofthe box.

of the box, in each ofthe outside channels 6, are one or more braeingwebsjl whichserve to tie the sides lof the channels in the top of the box together. y

In each of the end Walls 3 therev is preferably provided a single internal channel 16 having a vertical bracingy web V17 therein. The bracing Web 17 has cross Webs 18 thereon that tie the sides of the channel together, and the bracing Webs 18 are preferably substantially in horizontal alignment with the Webs 9.

The channel formation in the side Walls of the box gives the box considerable rigidity. The Websl arranged in the channels as described brace the'structure against War ing or cracking in any direction, While t e The webs- 14 are" On the" topv top is strengthened both by the channel for- `mation thereof and bythe provision of the Webs 10 and 13. VThe end Walls ofthe box are strengthened by the provision of the channels 16 in the same Way that Vthe sides of the box are strengthened.

The advantages of the invention arise from the factthat a box is provided which ioo is securely bracedand tied together against collapsing, distortion or cracking in various directions, so that the life of the box is very materially lengthened and the box is more capable of'withstanding severe temperature changes and conditions. The i'eversely arranged channels, in eiiect, provide non-conftinuous twinwalls Yfor the box.

vision lof interna-l and yexternal webs' ex-` tending vertically, longitudinally and trans versely of the box iirmly holds the channels' against spreading and give rigidity thereto, and the strength of the `box is further increased by Vstaggeringthe webs so that the boxis bracedin dilierent horizontal planes .inside and out. The arrangement provides,

iny eliect, wall structure comprised of a plurality of panellike sections staggered withrespect to one another and being Vconnected by the transverse walls 7 forming the sides of the channel. Y

A While lnhaveillustrated a pre'erred einbodiment of the invention, it will be understood that this is simply illustrative of the idea of my invention and thatl various changes Vand modifications may be made therein, and that the invention may be other- Wise embodied Within the scope oi the following! claims. 5

I claim: -e Y l 1. An annealing box structure having top, side and endvrwalls, the side walls being formed of a plurality of channel portions 'having substantially 'lat bottoms and sulr stantially,perpendicular sides, some oi"l the channels being turned inwardly and some of the channels being turned outwardly, said inwardly turned channels having bracing webs-therein, and said outwardly turned channels'having bracing webs therein.

2. Anv annealing boxv structure having top,

side and lend walls, the side walls and topv The probeing in the forni of a series of alternately reversed channels, and webs in the channels extending longitudinally and Ltransversely thereof, the transverse webs on the inwardly y turned channels being staggered with respectto lthose in the outwardly turned channels. f .3. An annealing box structure having top, sideand end walls,the top and sidewalls being formed of a` plurali-ty oi' continuous like portions having substantially perpendicular sides, the widths of the-channels be-v tok ing greater than their depths, the said chanv.

nel portions extending up the sides and continuously across'the top of the box, each of, vthe end walls also having a channel therein,

all` of the channels having perpendicular bracing webs therein, those bracing webs in-Y side -the top` being of greater height than: Y

the depths oi the channels. n Y Y r 5. An annealing box structure having a top, sides and end walls, the sides being comprised ot a series of panel-like sectionsarranged in staggered relation to one an! other, the panel-like sections being Vconnect.

ed to each other by transversely extending web portions.

In testimony whereotI I have hereunto setv my hand.

Y WILLIAM n. Tito'UTM-AN.'` 

